Indoor help , why does this keep happening?

[rick-j]

 

[Jraven]

Click that and it should give you a choice of where to find your pic

 

[GoAuto6]

How's pH?
What lights?
What food?

 

[Jraven]

You are in good hands now.

 

[rick-j]

Im growing in ffof in 5 gal smart pots, tags easy auto feed,left gsc under a Patinum 300, with the bad leaves, middle plant a forest fruit from asc and another gsc under a roleleandersomething cob, 800 watts from China. The 2 under the cobs are looking fine. PH is 6.5

 

[GoAuto6]

Ffof is notorious for pH swings, I do see a cal-mag mag issue which comes with LED's they seem to suck up the cal-mag.

 

[rick-j]

THANK YOU, I forgot , im using RO water also. IM going to start a new thread the right way, going to the intros first, thanks again for answering.

 

[Arthur]

I used to use , as stated above I dropped the line due to large shifts in the soil ph about 6 weeks in or so. Would slide down into the mid 5s showed a lot of the same Mg issues.

RO water is slightly a different beast, how do you go about your watering / feedings?

 

[GoAuto6]

It's hard to pH R/O water as it's really dead water, you can't pH till you add nutrients. I don't even pH it anymore

 

[rick-j]

Ive been watering every 2 days, I use advanced nutrients cal-mag+, 5ml. per gal. The 2 plants on the COB SIDE LOOK FINE,its just under the Platinum 300 that the leaves look bad, just the outside leaves, mabey the lights?